baber/WOPTO huggingface dataset:
Patent GB-388737-A (GB)
Title: Normal heptyl phenol and process for the production thereof
IPC: C07C37/16
Filed: 1931-07-29
Abstract: n-Heptyl phenol is obtained by condensing n-heptyl alcohol with phenol in the presence of a condensing agent, such as zinc chloride, calcium chloride, magnesium chloride or anhydrous sodium sulphate, and fractionally distilling the mixture under reduced pressure.  The product, which appears to be a mixture of the o-, m- and p-heptyl phenols, has antiseptic properties.  In an example, n-heptyl alcohol is prepared in the known manner by destructive distillation of castor oil and reduction of the  nanthol obtained, and is then condensed with phenol with the aid of zinc chloride.
Patent GB-199976-A (GB)
Title: Improvements in plant markers
IPC: G09F3/12
Filed: 1922-08-09
Abstract: 199,976. Rolph, H. M. Aug. 9, 1922. Label holders.-A support for garden labels is formed from a length of wire bent to comprise a part 1 for insertion in the soil, and an upper horizontal part 5 having at one end two loops 3, 4 at right-angles, and at the other end a hook 7 adapted to be engaged in a hole in the label to support it when it is turned out of the loop 4.
Patent GB-258252-A (GB)
Title: Improvements relating to the protection of electric circuits
IPC: H02H3/26
Filed: 1926-09-03
Abstract: 258,252. British Thomson-Houston Co., Ltd., (Assignees of Baker, W. R. G.). Sept. 14, 1925, [Convention date]. Vacuum tubes.-A protective device for a power circuit comprises a discharge tube controlled by the magnetic field of two or more coils, one of which is energized from the circuit. As shown, a tube having an incandescent cathode 5 and an anode 7 connected through a. battery with the trip coil 3 of a circuit-breaker 2, is controlled by a separately-excited coil 9 and by coils 10, 11 energized through windings 14, 15 in accordance with current and voltage conditions in the circuit. The coils 10, 11 oppose the coil 9, the excitation of which is adjusted so that the strength of the resultant magnetic field is sufficient to keep the current through the tube substantially at zero. If the feed due to either of the coils 10. 11 is increased, the tube current rises abruptly to a maximum and the trip coil is energized. One or more of the coils may be pivotally mounted for adjusting the fields. In a modification a switch is provided for connecting the coils 10, 11 in series or parallel, the windings 14, 15 being in series. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of a single coil. This subject-matter does not appear in the Specification as accepted.
Patent GB-1321588-A (GB)
Title: Spinstabilised rocket-propelled projectile
IPC: F42B10/30
Filed: 1971-04-19
Abstract: 1321588 Rocket-propelled projectiles WERKZEUGMASCHINENFABRIK OERILKON BUHRLE AG 19 April 1971 [27 Feb 1970] 21768/71 Heading F3A A spin-stabilized, rocket propelled, projectile comprises a common nozzle body 3 provided with forward propulsion nozzles 32 and spingenerating nozzles 33, a propellant grain 29 for providing thrust for propulsion, and a further propellant grain 53 for providing thrust for spin, in which a spin generating nozzle is disposed between adjacent pairs of forward propulsion nozzles. Thermal insulation 31 surrounds the grain 29. The propulsion nozzles 32 define the surface of a theoretical cone whose apex lies on the axis of the projectile. A hollow charge 14 carried by the projectile is mounted on a ball bearing 21 so that the spin of the projectile is generally not imparted thereto. In use, the projectile is launched from a firing device 46 which is attached to a rifle 44. A catch 49 securing the projectile is unlatched as a striker 52 moves to penetrate a percussion cap 39. The flash from the cap ignites the spingenerating propellant 53, some of the hot combustion gases of which pass through holes 28 to ignite the forward propulsion charge 29. A portion of the gases from the charge 29 pass back through the holes 28 to sustain the spin. In another embodiment (Fig. 2, not shown), the spin-generating propellant is in the form of a disc (60) and the percussion cap (66) is arranged to be ignited by the hot gases from a rifle (45).
Patent GB-416319-A (GB)
Title: Improvements in graters for nutmeg and the like
IPC: A47J43/25
Filed: 1933-03-11
Abstract: 416,319. Nutmeg graters. LEA, J. C. CHATER-, and LEA, W. B. CHATER-, New Icknield Way, Letchworth, Hertfordshire. March 11, 1933, No. 21875/32. [Class 28 (ii).] A grater for nutmegs and the like comprises a grating surface 10 and a relatively revoluble nutmeg container 16, the nutmeg being kept in contact with the surface 10 by a spring-wire clamp 20 pivoted at 23 and carrying a pusher plate 19, the pressure being applied by engaging the ends 26 of the wire 20 with a stop 27, and relieved by disengaging the wire ends from the stop, after which the wire 20 and plate 19 may be swung away from the container 16 for the insertion or removal of nutmeg. The surface 10 is formed with beaded edges and an integral handle 11, the centre portion being formed as a bearing for a trough-like member 15 having a front rounded wall and a portion 17 struck-up from its bottom to form the container 16. The pivot holes 23 are formed in the sides of the trough and the handle 28, for the rotation of the container, is attached to the front rounded wall.
Patent GB-387369-A (GB)
Title: Improvements in and relating to electric power converting apparatus
IPC: H02M7/51
Filed: 1931-07-31
Abstract: 387,369. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fitzgerald, A. S., Warwick Road, Wynnewood, Pennsylvania, U.S.A.) July 31, 1931, No. 21912. Convention date, Aug. 8, 1930. [Class 38 (ii).] A system for converting D.C. into periodically varying current comprises a circuit including a pair of valves 16, 17 and a condenser 14 serially connected across the D.C. source 10, 11, a second circuit including a pair of valves 18, 19 also connected serially with the condenser across the source, and an A.C. circuit 12 common to both of said circuits. The grids of the discharge valves are connected to their respective cathodes through biassing batteries 26 and the secondary windings 27 .. 30 of the transformer 31. When the valves are of the vapour discharge type, reactors 20, 21 are introduced to effect quick interruption of the current in the valves. When the voltage from the transformer 31 applied to the grids 22, 24 makes the valves 16, 17 conducting, the valves 18, 19 are non-conducting and current flows via the valve 16, condenser 14, winding 15 and valve 17, until the condenser is completely charged or until the valves 16, 17 are made non-conducting. Immediately afterwards, the valves 18, 19 become conducting and the valves 16, 17 are non-conducting and the current flows via the valve 18, winding 15, condenser 14 and valve 19, i.e. in the opposite direction, so that an A.C. of the same frequency as in the transformer 31 is induced in the secondary winding 13 and supplied to the lines 12. Specification 347,474 is referred to.
Patent GB-500730-A (GB)
Title: Improvements in and relating to a process of and apparatus for filtering liquid egg material
IPC: B01D33/00
Filed: 1937-08-10
Abstract: 500,730. Filtering liquids. TRIGGS, W. W. (Standard Brands, Inc.) Aug. 10, 1937, No. 21977. [Class 46] Liquid egg material is forced' through a filter barrier by a member which simultaneously severs material adhering to the barrier. As shown in Figs. 1 and 2, the material is de livered from a tank 11, fitted with a mix ing propeller 13 through a pipe 16 into a cylindrica screen 23 rotated in a casing 18 by a motor 30. Scrapers 28 fixed to a stationary shaft 26 and inclined in the direction of rotation of the cylinder engage the surface of the cylinder and force the material therethrough. Alternatively, the scrapers may rotate within a fixed screen. Fig. 3 shows apparatus in which the scrapers 33 and screen 31 rotate in opposite directions. Fig. 4 shows a strainer 41 with a screw conveyer 40 for discharging at intervals through apertures 43, 44, material retained by the strainer. Specification 488,680 is referred to.
Patent GB-738231-A (GB)
Title: Improvements in and relating to semiconductor p-n junction units
IPC: C30B15/20
Filed: 1953-08-11
Abstract: Alloys for addition to a melt of pure germanium to produce a melt from which a semiconductive crystal can be grown consist of Sb and Ga in the proportions 20-60 : 1, and Sb and In in the proportions 1 : 2.5-5.  An alloy of As and Ga in unspecified proportions is also mentioned.  These alloys are added to the germanium melt in the proportions of 1-100 mg. Sb:Ga alloy, and 5-500 mg. Sb:In alloy respectively to 100 grams of germanium.
Patent GB-587603-A (GB)
Title: Improvements in the manufacture of capsules, collapsible tubes and similar containers from plastic material
IPC: B65B9/24
Filed: 1944-11-13
Abstract: 587,603. Collapsable containers; screw caps. POWER, J. K., (formerly POSNER, K.). Nov. 13, 1944, No. 22311. [Classes 66 and 125 (iii)] [Also in Group V] A collapsable tube 1 of plastic material such as gelatine, cellulose ester or ether, or polymerization product has a closed-end screw-threaded neck 2 and a screw-threaded cap 5 having a needle 7 which pierces the closed end when the cap is first applied. In a second construction the screw-threads on the neck are replaced by part of a screw thread. In a third construction the neck has studs 22 which co-operate with slots 24 in the cap. Specifications 570,128, 570,451 and 591,402 are referred to.
Patent GB-239541-A (GB)
Title: Improvements in and connected with carburetters for internal combustion engines
IPC: F02M57/06
Filed: 1924-12-31
Abstract: 239,541. Gribojedoff, N. von. Dec. 31, 1923, [Convention date]. Spray carburettors.- In a carburettor in which the fuel is delivered through an annular slot between a rotatable and a stationary element, one of the elements is provided with a projection which enters a recess in the other element in order to provide a longer path for the fuel. As shown in Fig. 1, the slot is formed between a conical surface 9 on a fixed head 3 carried by the engine casing, and the upper part 8 of a sparking-plug 5 mounted in the top 1 of the engine cylinder, which rotates about its longitudinal axis. Fuel is supplied through a conduit 10 in the head 3, which is provided with a recess 4 to receive a projection 7 on the plug 5. The fuel, in passing over the projection 7 and through the annular slot, is heated by conduction, and also by the sparking-plug, which is thereby cooled. Air enters around the head 3, and the mixture is delivered by spiral ribs 14 through openings 15. Current is supplied to the central electrode of the plug 5 by a pin 11 and a spring or wire conductor 13. In a modification, the plug 5 is cup-shaped and capped with metal for engagement with a current-carrying brush mounted in the head 3, which is provided with a projection entering the cup, and also with a hood surrounding the plug. Specification 184,217 is referred to.
Patent GB-726660-A (GB)
Title: Improvements in solutions for treating metallic surfaces
IPC: C23F3/03
Filed: 1951-09-25
Abstract: A surface treating or brightening solution for aluminium or aluminium alloys comprises ammonium bifluoride, nitric acid, chromic acid, and ethylene glycol or sugar, the remainder being water with or without 0.002-0.05 per cent of a salt of a metal below hydrogen in the electrochemical series.  The solution may comprise 0.30-0.75 per cent ammonium difluoride, 2.0-7.5 per cent of 70 per cent nitric acid, 0.30-0.75 per cent chromic acid and 0.4-1.0 per cent ethylene glycol or 0.2-1.0 per cent cane sugar; and may be used at 185-212 DEG F. The metallic salt may be copper nitrate, copper fluoride or a silver or gold salt.
Patent GB-479777-A (GB)
Title: Improvements relating to the production of molten metal
IPC: C22B9/00
Filed: 1936-08-14
Abstract: 479,777. Metal-melting furnaces. HENLEY EXTRUSION MACHINE CO., Ltd., and DUNSHEATH, P. Aug. 14, 1936, No. 22443. [Class 51 (ii)] A furnace 1 for melting metals in a non-oxidizing atmosphere is charged with ingots 2 through 1 a lock chamber 10 having inner and outer doors 3, 11, the air which enters the chamber 10 when the outer door is opened, being, before the inner door is opened, ejected and replaced by non-oxidizing gas. In the form shown in Fig. 1, the non-oxidizing gas is admitted at 18 and escapes at 13, an igniter 14 being provided so that completion' of the scavenging of the chamber 10 is indicated by ignition of the escaping gas. Entry of air past the operating-rod 17 of the door 3 is prevented by maintaining a trickle supply of gas through a pipe 15. In cases where the lock chamber is at a dangerously high temperature, it is placed in communication with an evacuating device or scavenged by inert gas before the non-oxidizing gas is supplied. Fig. 2 shows a construction in which the action of opening the outer door 11 automatically actuates a valve 20 to connect the chamber 10 to an evacuating plant, the non-oxidizing gas being automatically delivered, when the pressure has fallen to a predetermined degree, through a spring-loaded valve 30. Incorporated in this valve is a small needle valve which maintains a trickle supply through pipe 36 to the housing 16 of the rod 17 and through pipe 35 to the interior of the lock chamber 10. To minimize the effect of any explosion that may occur, the doors 3, 11 are fitted with insets 37 of mechanically weak material. The non- oxidizing gas employed in the melting chamber preferably consists of a mixture of an oxidereducing gas and a commercial inert gas which has been pre-treated by being subjected to high temperature and/or an ionizing electric discharge. Specifications 458,089 and 478,278 are referred to.
Patent GB-792680-A (GB)
Title: Improvements in aircraft undercarriages
Inventor: DOOLITTLE DONALD B
IPC: B64C25/52
Filed: 1955-08-04
Abstract: 792,680. Aircraft skis. ALL AMERICAN ENGINEERING CO. Aug. 4, 1955, No. 22446/55. Class 4. An aircraft landing gear comprises a strut depending from the fuselage, a hydroplaning surface pivoted to the strut, a pilot operated fluid actuated trim cylinder connected to the member for selecting and up- or down-trim position and an over-riding control for selecting free trim. In Fig. 2, a land wheel C and a water ski 12 slotted to receive the wheel are mounted on a shock absorbing strut 16, 17, the latter bearing a projection 18. A hydraulic piston 19 and cylinder 20 extends between the projection 18 and the strut 12. Fig. 5 shows the hydraulic control system for an undercarriage having two struts and skis. A control valve 23 has one port connected by a conduit 21 to the upper parts of cylinders 20, and a second port is connected by conduit 22 to the lower parts of cylinders 20. A third port leads by conduits 24, 30 to a fluid reservoir R, and a fourth port is connected to one port of a valve 29. A second port of the latter is also connected to conduit 30, and a third port is blanked off at 29a. The fourth port is connected to a pressure conduit 33 fitted with a gauge 35 and an accumulator 34 and fed from the reservoir by a hand pump 32. With the valve 29 in the position shown in full lines, the cylinders will be moved relative to the pistons to one extreme position or the other, depending on the position of valve 23, and the skis assume a corresponding up- or down-trim attitude. With valve 29 in the position shown dotted, the cylinders are free to move relative to the pistons, subject to viscous damping, irrespective of the position of valve 23, and the skis can oscillate subject to a damping effect.
Patent GB-1529519-A (GB)
Title: Plant cultivation block and method of manufacturing the same
IPC: A01G9/10
Filed: 1976-05-28
Abstract: 1529519 Growing plants KOSAN AS 28 May 1976 [28 May 1975] 22458/76 Heading A1E A sheet of foamed plastics is subdivided into individual cultivation blocks by grooves 7, each block having a conical seed-receiving indentation 3 from which a bore 4 leads to the intersection of channels 5, 8 formed in the base of the block and extending across the full length and breadth of the sheet. The foamed plastics has elongate, vertically oriented, cells with porous walls, and a pH value below 5.2.
Patent GB-630046-A (GB)
Title: Improvements in and relating to apparatus for separating non-spherical articles fromspherical articles such as pills
IPC: A61J3/06
Filed: 1947-08-13
Abstract: 630,046. Separating solid materials. MOSS, F. and BEECHAMS PILLS, Ltd. Aug, 13, 1947, No. 22459,[class 117] Small non-spherical objects are separated from spherical objects e.g. in the manufacture of pills, by causing all the objects to. roll down several successively lower sloping surfaces 3, 10, a, b and c, so arranged and relatively disposed as to offer greater impedance to the non-spherical objects, the spherical and non-spherical objects being collected in separate receptacles at the bottom of the final slope. As shown, surfaces 3 and 10 slope in opposite directions and surfaces a, b and c are arranged in step formation with the salient edges 12, 13 of the steps inclined to the pormal of the slope and preferably also inclined to each other. After leading the final slope c of the series, the spherical objects pass across a gap 15 at the terminal edge 11a into a collecting through 14 while non-spherical objects fall through the gap 15. Means such as a nut and screw arrangement 17, 19 may be provided for adjusting the width of the gap. 15 to provide for varying terminal speeds of the objects due to atmospheric conditions. The delivery speed of the articles from the hopper 1 down the slope 3 may be controlled by a rotary brush 4.
Patent GB-794523-A (GB)
Title: Improvements relating to artists' easels
Inventor: STEEL KENNETH
IPC: A47B97/08
Filed: 1955-08-04
Abstract: 794,523. Artists easels. WINSOR & NEWTON, Ltd. Aug. 3, 1956 [Aug. 4, 1955], No. 22471/55. Class 52(3) In an artists easel having extensible tripod legs 1, blocks 6 on two of the legs for supporting the lower edge of a drawing board 7 or the like and a supporting arm 9 pivotally mounted on the tripod and carrya slidable block 11 to engage the upper edge of the board or when horizontal to support a board in the horizontal position, the legs 1 and the arm 9 have a common pivot 2 intermediate the ends of the arm and the tops of the legs are positioned to lie, in the working position, at or beneath the plane containing the supporting surface of arm 9. Block 11 is reversible to accommodate different thickness of board Specification 459,676 is referred to.
Patent GB-591359-A (GB)
Title: Improvements in putlog heads
IPC: E04G5/04
Filed: 1944-11-15
Abstract: 591,359. Scaffolding for buildings; clamps. RAYLOR, W. Nov. 15, 1944, No. 22556. [Class 20 (ii)] A clamping head for a putlog 7 comprises a plate 1 with tapered end 8 adapted to be driven into a wall, and carrying integrally an inverted U-formation 3, through the apex 4 of which a screw 5 works to secure the putlog by a clamping plate 6. The U-formation 3 may be welded in recesses in the plate 1. The rear end of the plate is recessed at 9 to avoid burring in the seating area of the putlog 7, by hammer blows. The clamping plate may be freely rotatable on, but permanently attached to the screw 5, by burring over the end of the screw.
Patent GB-317219-A (GB)
Title: Improvements in and relating to barge hatches and the like
IPC: B63B19/24
Filed: 1928-08-03
Abstract: 317,219. Humphrey & Grey (Lighterage), Ltd., and Palmer, W. C. Aug. 3, 1928. Hatch covers for hatches fitted with fixed fore and aft beams 10 comprise sections 17 the outer ends 9 of which fit between channel members 8 secured to the hatch coaming whilst the inner ends abut on the beams 10 and are secured bv beams 11 carried by pivoted links 12 in such fashion as to permit the beams 11 to abut to free the sections 17 and to take over the ends of the sections and lock same when the beams 10 are moved asunder. In the locking position, the beams 11 are fastened by links 18. Fig. 5, pivoted at 17 to one. beam and slotted at the free end to engage a stud 21 on the other beam. Associated with the link is a slotted tongue member 24 which takes over the projection 22 and is secured by a padlock.
Patent GB-517583-A (GB)
Title: Device for stringing labels and the like
IPC: B31D1/02
Filed: 1938-07-30
Abstract: 517,583. Stringing labels. MILLER, G. A. July 30, 1938, No. 22722. [Class 73] A machine for applying strings to tie-on labels comprises a fixed gripper over which the label is threaded and which grips the end of a string as the latter is 'carried past it in ari orbital path and again when the string feed has made a complete rotation ; the string is then cut the removal of the label effecting the looping of the string on to 'the label. The machine comprises a hollow rotating post 3, Fig. 1, carrying a string guide 1 and surrounding a fixed spindle 4 on which is a disc 5 carrying a cutter 7 and a spring gripper 6. The cutter is actuated from a cam 12 by a push rod 11. The string 17 is led from a reel on the rotation disc 19 and passes the gripper twice before being cut as shown in Fig. 2. The label is shown at 28.
Patent GB-1334978-A (GB)
Title: Method of vapourizing a stream of cryogenic fluid
IPC: F01K9/00
Filed: 1972-05-15
Abstract: 1334978 Revaporizing gases BLACK SIVALLS & BRYSON Inc 15 May 1972 [7 June 1971] 22739/72 Heading F4P In a method of revaporizing gases, e.g. L.N. G., the liquefied gas is passed via a pump 16 to a heat exchanger 18 where it is vaporized by a stream of ambient water supplied via a pump 24, the stream of water being warmed in heat exchanger 40 by another stream of fluid to approximately its original temperature before being returned to its source. The other stream of fluid is, as shown, steam leaving a generating turbine the steam being condensed in the exchanger 40. At least some of the vaporized gas leaving the exchanger 18 is used to fuel the steam boiler 30, the remainder being removed via line 29. In a modification, Fig. 2 (not shown), the vaporized gas, after leaving exchanger 18 (70), is divided into major and minor portions which are passed in heat exchange relationship with the exhaust gases and input air respectively of a gas turbine before being recombined to feed the steam boiler and an external line. The gas turbine is fuelled by a portion of the vaporized gas leaving the exchanger through which the gas turbine exhaust gases are passed.
Patent GB-813286-A (GB)
Title: Improvements in the ammonia-soda process
IPC: C01D7/18
Filed: 1956-07-23
Abstract: In the ammonia-soda process, wherein carbon dioxide is evolved both by heating limestone in a lime kiln, and by heating the sodium bicarbonate product in a calciner, both the lime kiln and the calciner are operated at pressures above 20 p.s.i.g., preferably between 25 and 60 p.s.i.g.  Considering the solid line portion of the Figure, air is forced into the lime kiln by the compressor 10, and the carbon dioxide either passes to a cleaning tower or to the carbonator, where it is introduced either at the bottom or the middle.  A vent 17 may be used to reduce <PICT:0813286/III/1> the pressure of entrance into the carbonator.  The carbon dioxide from the calciner is passed directly to the carbonator, usually mixed with the kiln gas.  A booster compressor 12 may be used, although this is normally not required.
Patent GB-229452-A (GB)
Abstract: 229,452. Starck, J. R. Jan. 10, 1924. Band-strainers. - In a band clip for rods &c. the ends of a flexible strip are held between a tunnel member 10 or members and sliding collars 3 thereon, and d tightening is effected by a screwed rod passing through the tunnel member and provided with nuts. The strip may enter the collars at either end or through holes in the base thereof. Washers 16 with projections 17 may be used below the nuts, or the washer may be combined with a tunnel member 18, Fig. 9. Fig. 7 shows a modification wherein the ends of the strip pass transversely through holes 11, 12 in the collars, and are distorted and retained by projections 14 on a tunnel shaped piece 15 when the nuts are tightened.